Folding bed



(No Mdel.) J. BISHOP.

STEAM TRAP.

No. 376.850. I Patented Jan. 24; 1888.

- vvNITED STATES [5` 1 of that class which when folded present the 'Pnrluvrl ,'OFFICE.

-. FOLDING BED.

SPECIFICATION forming part of Letters Patent No. 376,851, dated January 24,' 1888.

' -Application led September 2,1887. Serial No. 248,641. r(Ifo model.)

To all whom it may concern: I y

Be it known that 1, BoDoLrHv G. BOWERS, a citizen of the United States, residing at Carlyle, in the county of Clinton and State of Illinois, have invented certain new and useful Improvements in Folding Beds; and -I do declare thefollowing to be a full, clear, and exact description of the invention, suchas will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part .of this specification.

This invention relates to folding beds, chieiy appearanceof a wardrobe.

The object of the invention is to improve the counterpoise mechanism and render the same simple and efficient, and to so dispose and proportion the parts that the force exerted by the counterpoise will be about equal, no matter what may be the position of the bed, whether closed oropened or at any point 'between these two positions. f

The improvement consists in the novel and peculiar construction and arrangement of parts having the front removed, aportion ofthe bed, and the counterpoise mechanism, showing the relative position of the counterpoise mechanism when the bed is folded and un -folded by full and dotted lines, respectively.

The bed is of the usual construction and is composed of the head and foot sections, A and set of bureau-drawers. The shelf F, placed on the ends of the widened portions c, is secured ,thereto byhinges on the front of the widened portions c, so that said'k shelf can be turned down, as shown by dotted lines inFig. 2. The

space Gl2 between the shelfF and the Afoot-sec` tion B is borderedv by the side pieces, G, 'se- Vcu'redt'ov the rails C, and the end piece, Gf',

fastened to the foot-section B. The `brackets g, secured to the side pieces, G; have the'glass H pivotally supported between'them, the glass y their ends and pivoted at their opposite ends l The weights'K are ,v

to the sides of the case. suspended from the free ends of the levers,and the rodL is connected/with the head of the bed and supports the levers at their point of rod`M, about which it turns when being folded and unfolded.

bed is pivoted to thebase of the case bythe The foot leg-section, N, is hinged,by staples v n, to the foot of the bed, and folds when ,the bed is folded, asshown in Fig. 2, and unfolds when the/bed is let down, as shown in Fig. .1; The cable-wire O', passing tb rough vopening b in the foot B, and connected at one end with f V the leg-section and at. its other end with the arm m, extending from the rod M, -is drawn tant by rotating said rod M, so as to draw said leg-section up snug against the foot of the bed. ,I

. The staples n afford a loose connection vloetween the leg-section and the foot B. Now,

'when the cable O isfs'lack and the bed folded,

the'lleg-sectionwill turndown over the side pieces, G, on eachside of the glass Hfas shown in Fig. 2. When the bed is unfolding, the leg` section will swing out and away from the side pieces ,G, until the bed iscompletelyunfolded, when the leg-section will occupy a verticaly By tightening the cable O the legposition. section will be drawn up close to the footB,

as will be readily understood from Figs, 1 and 2 of the drawings. U

When 'the bed is down, the levers J arev in approximately a-horizontal position and the weights exert their utmost force to lift the bed,

be prevented. Then as the diaphragm cools.

and contracts the sides will return to their normal position and away from contact with the respective caps.

Instead of making the caps concave upon the inner side, they may be made flat, as indicated in Fig. 3, and the disks or sides of the diaphragm made concave, as represented in Fig. 3. In that case the same stop or support is givento the sides of the diaphragm under expansion. n

The caps have a central opening, D, through them, by which a bearing vmay be attained directly upon the diaphragm, to utilize the expansion and contraction thereof.

The application of this diaphragm to a steam-trap is represented in Fig. 1, in which E represents an outer casing, F the lower head, and G the upper head, forming a chamber, in which the diaphragm is set, as there represented. The lower side of the diaphragm rests upon a post, G', which extends through the opening in the lower capof the diaphragm, and so that the lower side of the diaphragm will rest directly upon this post as a support. At the upper side a similar post, H, is arranged through the opening D in the cap upon the upper side of the diaphragm, and so as to rest directly upon that side of the diaphragm. The top G of the trap is provided with an opening, I, by which connection maybe made directly with the steam-pipe, and opens into the trap, so that the contents of the steampipe may pass into the trap. The inner side of this opening forms a valve-seat, J, and to Athe upper post, H, a valve, K, is applied,

which is adapted to set upon the valve-seat J, so as to close the opening, but normally stands distant from the opening, and to an extent within the limits of the expansion of the diaphragm, and so that as the diaphragm expands it will bring the valve to its seat and close that opening, or when the diaphragm is contracted it will open the Valve, as represented in Fig. 1.

The lower end of the trap is provided with one or more holes, through which water may escape, and for convenience of adj ustmentthe lower head is provided with a set-screw, L, by which the diaphragm may be raised or lowered to increase or diminish the extent of opening of the valve.

rlhe diaphragm and caps are constructed of somewhat less diameter than the casing, or so as to leave sufficient space between the casing and the diaphragm for the water to pass below, as seen in Fig. 1.

This trap being applied so that the steampipe may communicate therewith in the usual manner for opening steam-pipes to the trap, steam will pass into the trap through the opening J and cause the diaphragm to expand, and that expansion will immediately close the trap, so as to prevent the further admission of steam; but the trap being exposed to the atmosphere will cool the diaphragm and cause it to contract, open the valve, and permit whatever water may have accumulated in the pipe to flow therein until steam will again enter the trap and cause expansion of the diaphragm to close the valve, the water passing off through the trap to waste.

In some cases a single expansible side of the diaphragm will be suicient for practical purposes--say as seen in Fig. 4. In this case it will be understood that the cap is only applied to the exible side. I therefore wish to be understood as including the cap as applied to one or-both sides of the diaphragm, accordingly as said sides are elastic or flexible, and so as to leave a'limited amount of space between the cap and its adjacent side of the diaphragm, and serve as a stop to limit the extent of movement of that side of the diaphragm.

This general application of the diaphragm to one steam-trap will be sufficient to enable others skilled in the .art to apply it to other traps or to other purposes where a similar diaphragm `is desired.

1. The herein described diaphragm for steam-traps and like purposes, consisting of a rigid wall, with one or both sides composed of elastic or flexible materiahcombined with a cap corresponding to the respective elastic or flexible sides, secured to the rigid wall of the diaphragm, the said caps having an opening through them to the said elastic side or sides of the diaphragm, and the caps constructed to form a recess between their inner surface and the adjacent surface of lthe said sides of the diaphragm, substantially as described, and whereby said caps forln stops to limit the expansion of the said diaphragm.

2. A steam-trap consisting of a chamber, E, closed at its upper and lower ends, a diaphragm within said chamber, composed of a Y rigid wall with elastic or flexible top and bottom, with caps niadeffast to said diaphragm,

and so as to cover the said flexible or elastic valve on the diaphragm is adapted to open or close, substantially as described.

JOSEPH BISHOP.

- lVitnesses:

FRED C. EARLE, LILLIAN D. KELsEY.

IOO 

